BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 48 50%
2 United States 19 19.8%
3 Germany 10 10.4%
4 Netherlands 9 9.4%
5 Australia 2 2.1%
6 Canada 2 2.1%
7 France 1 1%
8 India 1 1%
9 Korea, Republic of 1 1%
10 Macao 1 1%
11 Malaysia 1 1%
12 Taiwan 1 1%